Espace & Lumière: Unité d'Enseignement M | Space & Light: Teaching Unit M

The UE M course aims to improve the students’ ability to see, to plan and to design light in architecture. The purpose is to consider light as a resource, a raw material, and to understand how it can be used to emphasize architectural concepts. The students were asked to adopt a sustainable approach focusing on comfort and energy concerns. The following topics were adressed : daylighting optimization, artificial lighting, design and testing of specific day- and electric lighting systems

BN Interphase Processed by LP-CVD from Tris(Dimethylamino)Borane and Characterized using SiC/SiC Minicomposites

International audienceSiC/BN/SiC 1D minicomposites were produced by infiltration of a Hi-Nicalon (from Nippon Carbon, Japan) fiber tow in a Low Pressure Chemical Vapor Deposition reactor. Tris(dimethylamino)borane was used as a halogenide-free precursor for the BN interphase processing. This precursor prevents fiber and CVD apparatus from chemical damage. FT-IR and XPS analyses have confirmed the boron nitride nature of the films. Minicomposite tensile tests with unload-reload cycles have shown that the minicomposite mechanical properties are good with a high interfacial shear stress. Transmission electron microscopy observation of the interphase reveals that it is made of an anisotropic turbostratic material. Furthermore, the fiber/matrix debonding, which occurs during mechanical loading, is located within the BN interphase itself

Empirical model for rapid macroseismic intensities prediction in Guadeloupe and Martinique Modèle empirique pour la prédiction rapide des intensités macrosismiques en Guadeloupe et Martinique

International audienceWe describe a simple model for prediction of macroseismic intensities adapted to Guadeloupe and Martinique (Lesser Antilles), based on a combination of peak ground acceleration (PGA) predictive equation and a forward relation between acceleration and intensity. The PGA predictive equation is built from a 3-parameter functional form constrained by measurements from permanent accelerometer stations, mostly associated with Les Saintes crustal earthquake (21/11/2004, Mw = 6:3) and its many aftershocks. The forward intensity model is checked on a database of recent instrumental events of various origins with magnitudes 1.6 to 7.4, distances from 4 to 300 km, and observed intensities from I to VIII. Global sigma residual equals 0.8 in the MSK scale, suggesting a larger applicability range than the intermediate PGA predictive equation. The model is presently used by the French Lesser Antilles observatories to produce automatic reports for earthquakes potentially felt

Expression, purification, crystallization and preliminary X-ray analysis of the cathelicidin motif of the protegrin-3 precursor

International audienc